protected function inspect(Feed $feed)
{
while ($item = $feed->getNextItem()) {
foreach ($item->all() as $key => $value) {
if (!array_key_exists($key, $this->data)) {
$this->data[$key] = [];
}
$hash = md5(serialize($value));
if (!array_key_exists($hash, $this->data[$key])) {
$this->data[$key][$hash] = 0;
}
$this->data[$key][$hash]++;
if (!array_key_exists($hash, $this->values)) {
$this->values[$hash] = $value;
}
}
}
}
/**
* @param ReaderInterface $reader
* @param EventDispatcherInterface $dispatcher
* @param string $itemName
*
* @return Feed
*/
protected function createFeed(ReaderInterface $reader, EventDispatcherInterface $dispatcher, $itemName)
{
if ($reader instanceof XmlReader) {
$reader->setNodeCallback($itemName);
}
$feed = new Feed($reader, $dispatcher);
/** @var ModifierInterface $modifier */
foreach ($this->modifiers as $position => list($modifier, $continue)) {
$feed->addModifier($modifier, $position, $continue);
}
return $feed;
}
/**
* Returns the next item in the feed, or null if no more items are left.
* Use this when iterating over the feed.
*
* @param Feed $feed
* @return FeedItemBag|null
*/
public function getNextItem(Feed $feed)
{
try {
return $feed->getNextItem();
} catch (\Exception $exception) {
$this->handleException($exception);
}
return null;
}